Kerry did a good job in establishing himself as a viable alternative to Bush.
With his performance on Thursday night I think he "secured his base". I think he locked up states like New Jersey, Michigan and Minnesota-that were Republican longshots to begin with. Bush is still slightly ahead in E.C. I.M.O. but I do not see this race being a landslide by any means.
I think you've pretty much called it like it is. Kerry will certainly consolidate his base and, ultimately, win some 'undecided' votes.
We'll just have to see how the other two debates pan out.